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320 lines
10 KiB
320 lines
10 KiB
7 years ago
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/**
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******************************************************************************
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* @file : usbd_storage_if.c
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* @brief : Memory management layer
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******************************************************************************
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* This notice applies to any and all portions of this file
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* that are not between comment pairs USER CODE BEGIN and
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* USER CODE END. Other portions of this file, whether
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* inserted by the user or by software development tools
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* are owned by their respective copyright owners.
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*
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* Copyright (c) 2017 STMicroelectronics International N.V.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted, provided that the following conditions are met:
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*
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* 1. Redistribution of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. Neither the name of STMicroelectronics nor the names of other
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* contributors to this software may be used to endorse or promote products
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* derived from this software without specific written permission.
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* 4. This software, including modifications and/or derivative works of this
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* software, must execute solely and exclusively on microcontroller or
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* microprocessor devices manufactured by or for STMicroelectronics.
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* 5. Redistribution and use of this software other than as permitted under
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* this license is void and will automatically terminate your rights under
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* this license.
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*
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* THIS SOFTWARE IS PROVIDED BY STMICROELECTRONICS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS, IMPLIED OR STATUTORY WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
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* PARTICULAR PURPOSE AND NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY
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* RIGHTS ARE DISCLAIMED TO THE FULLEST EXTENT PERMITTED BY LAW. IN NO EVENT
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* SHALL STMICROELECTRONICS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include <platform/status_led.h>
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#include "platform.h"
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#include "usbd_storage_if.h"
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/* USER CODE BEGIN INCLUDE */
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#include "vfs/vfs_manager.h"
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/* USER CODE END INCLUDE */
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/** @addtogroup STM32_USB_OTG_DEVICE_LIBRARY
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* @{
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*/
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/** @defgroup USBD_STORAGE
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* @brief usbd core module
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* @{
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*/
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/** @defgroup USBD_STORAGE_Private_TypesDefinitions
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* @{
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*/
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/* USER CODE BEGIN PRIVATE_TYPES */
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/* USER CODE END PRIVATE_TYPES */
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/**
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* @}
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*/
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/** @defgroup USBD_STORAGE_Private_Defines
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* @{
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*/
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#define STORAGE_LUN_NBR 1
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#define STORAGE_BLK_NBR 0x10000
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#define STORAGE_BLK_SIZ 0x200
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/* USER CODE BEGIN PRIVATE_DEFINES */
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/* USER CODE END PRIVATE_DEFINES */
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/**
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* @}
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*/
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/** @defgroup USBD_STORAGE_Private_Macros
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* @{
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*/
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/* USER CODE BEGIN PRIVATE_MACRO */
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/* USER CODE END PRIVATE_MACRO */
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/**
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* @}
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*/
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/** @defgroup USBD_STORAGE_IF_Private_Variables
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* @{
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*/
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/* USER CODE BEGIN INQUIRY_DATA_FS */
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/* USB Mass storage Standard Inquiry Data */
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int8_t STORAGE_Inquirydata_FS[] = {/* 36 */
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/* LUN 0 */
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0x00,
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0x80,
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0x02,
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0x02,
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(STANDARD_INQUIRY_DATA_LEN - 5),
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0x00,
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0x00,
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0x00,
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// Those strings are visible in dmesg, probably nowhere else.
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'M', 'E', 'G', 'A', 'P', 'I', 'G', ' ', /* Manufacturer : 8 bytes */
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'G', 'E', 'X', ' ', 'G', 'P', 'I', 'O', /* Product : 16 Bytes */
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'-', 'E', 'x', 'p', 'a', 'n', 'd', 'r',
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'0', '.', '0' ,'1', /* Version : 4 Bytes */
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};
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/* USER CODE END INQUIRY_DATA_FS */
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/* USER CODE BEGIN PRIVATE_VARIABLES */
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/* USER CODE END PRIVATE_VARIABLES */
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/**
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* @}
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*/
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/** @defgroup USBD_STORAGE_IF_Exported_Variables
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* @{
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*/
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extern USBD_HandleTypeDef hUsbDeviceFS;
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/* USER CODE BEGIN EXPORTED_VARIABLES */
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/* USER CODE END EXPORTED_VARIABLES */
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/**
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* @}
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*/
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/** @defgroup USBD_STORAGE_Private_FunctionPrototypes
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* @{
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*/
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static int8_t STORAGE_Init_FS (uint8_t lun);
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static int8_t STORAGE_GetCapacity_FS (uint8_t lun,
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uint32_t *block_num,
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uint16_t *block_size);
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static int8_t STORAGE_IsReady_FS (uint8_t lun);
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static int8_t STORAGE_IsWriteProtected_FS (uint8_t lun);
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static int8_t STORAGE_Read_FS (uint8_t lun,
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uint8_t *buf,
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uint32_t blk_addr,
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uint16_t blk_len);
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static int8_t STORAGE_Write_FS (uint8_t lun,
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uint8_t *buf,
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uint32_t blk_addr,
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uint16_t blk_len);
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static int8_t STORAGE_GetMaxLun_FS (void);
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/* USER CODE BEGIN PRIVATE_FUNCTIONS_DECLARATION */
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/* USER CODE END PRIVATE_FUNCTIONS_DECLARATION */
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/**
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* @}
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*/
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USBD_StorageTypeDef USBD_Storage_Interface_fops_FS =
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{
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STORAGE_Init_FS,
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STORAGE_GetCapacity_FS,
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STORAGE_IsReady_FS,
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STORAGE_IsWriteProtected_FS,
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STORAGE_Read_FS,
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STORAGE_Write_FS,
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STORAGE_GetMaxLun_FS,
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(int8_t *)STORAGE_Inquirydata_FS,
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};
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/* Private functions ---------------------------------------------------------*/
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/*******************************************************************************
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* Function Name : STORAGE_Init_FS
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* Description :
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* Input : None.
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* Output : None.
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* Return : None.
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*******************************************************************************/
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int8_t STORAGE_Init_FS (uint8_t lun)
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{
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/* USER CODE BEGIN 2 */
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dbg("Plug In");
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vfs_mngr_fs_enable(1);
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return (USBD_OK);
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/* USER CODE END 2 */
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}
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/*******************************************************************************
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* Function Name : STORAGE_GetCapacity_FS
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* Description :
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* Input : None.
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* Output : None.
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* Return : None.
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*******************************************************************************/
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int8_t STORAGE_GetCapacity_FS (uint8_t lun, uint32_t *block_num, uint16_t *block_size)
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{
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/* USER CODE BEGIN 3 */
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// *block_num = STORAGE_BLK_NBR;
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// *block_size = STORAGE_BLK_SIZ;
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// we have only one LUN
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*block_num = vfs_info.BlockCount;
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*block_size = vfs_info.BlockSize;
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vfs_printf("Get Capacity: %"PRIu32" sectors x %"PRIu16" bytes", *block_num, *block_size);
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return (USBD_OK);
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/* USER CODE END 3 */
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}
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/*******************************************************************************
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* Function Name : STORAGE_IsReady_FS
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* Description :
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* Input : None.
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* Output : None.
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* Return : None.
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*******************************************************************************/
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int8_t STORAGE_IsReady_FS (uint8_t lun)
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{
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/* USER CODE BEGIN 4 */
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// dbg("STORAGE_IsReady_FS? %d", vfs_info.MediaReady);
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StatusLed_Set(STATUS_DISK_ATTACHED, vfs_info.MediaReady);
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// Media change - no re-plug
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if (vfs_info.MediaChanged) {
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vfs_info.MediaChanged = false; // unset the flag
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return -1; // Notify about media change
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}
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// Plug out/in
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return vfs_info.MediaReady ? USBD_OK : USBD_BUSY;
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// return (USBD_OK);
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/* USER CODE END 4 */
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}
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/*******************************************************************************
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* Function Name : STORAGE_IsWriteProtected_FS
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* Description :
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* Input : None.
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* Output : None.
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* Return : None.
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*******************************************************************************/
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int8_t STORAGE_IsWriteProtected_FS (uint8_t lun)
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{
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/* USER CODE BEGIN 5 */
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// dbg("STORAGE_IsWriteProtected_FS? no");
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return false;
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// return (USBD_OK);
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/* USER CODE END 5 */
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}
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/*******************************************************************************
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* Function Name : STORAGE_Read_FS
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* Description :
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* Input : None.
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* Output : None.
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* Return : None.
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*******************************************************************************/
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int8_t STORAGE_Read_FS (uint8_t lun,
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uint8_t *buf,
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uint32_t blk_addr,
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uint16_t blk_len)
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{
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/* USER CODE BEGIN 6 */
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// dbg("rd lun %d adr %d len %d", lun, blk_addr, blk_len);
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vfs_if_usbd_msc_read_sect(blk_addr, buf, blk_len); // ????
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return (USBD_OK);
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/* USER CODE END 6 */
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}
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/*******************************************************************************
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* Function Name : STORAGE_Write_FS
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* Description :
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* Input : None.
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* Output : None.
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* Return : None.
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*******************************************************************************/
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int8_t STORAGE_Write_FS (uint8_t lun,
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uint8_t *buf,
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uint32_t blk_addr,
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uint16_t blk_len)
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{
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/* USER CODE BEGIN 7 */
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// dbg("STORAGE_Write_FS");
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vfs_if_usbd_msc_write_sect(blk_addr, buf, blk_len); // ???
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return (USBD_OK);
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/* USER CODE END 7 */
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}
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/*******************************************************************************
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* Function Name : STORAGE_GetMaxLun_FS
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* Description :
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* Input : None.
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* Output : None.
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* Return : None.
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*******************************************************************************/
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int8_t STORAGE_GetMaxLun_FS (void)
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{
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/* USER CODE BEGIN 8 */
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return 0; // we have 1 LUN
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// return (STORAGE_LUN_NBR - 1);
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/* USER CODE END 8 */
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}
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/* USER CODE BEGIN PRIVATE_FUNCTIONS_IMPLEMENTATION */
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/* USER CODE END PRIVATE_FUNCTIONS_IMPLEMENTATION */
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/**
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* @}
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*/
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/**
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* @}
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*/
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/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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